moving to 24MPs in Lightroom...

[doctorjames]

Dear all

I have just doubled my pixel count from the sony a700 with 12MPs to the a77 with 24.....

Lightroom seems to have taken issue with this (its fully up to date) and when clicking to zoom, instead of the usual 1/2 to 1 second delay as it renders, this process is taking 10 seconds or more...

Anyone else had the same issues... I figured it would run a little slower but not this slow....

im on LR 3.6, on a dual core AMD athlon 64 X2 5200+ 2.7Ghz with 4GB of RAM running windows 7 64 ultimate...

[OsmosisStudios]

More RAM would be my recommendation. That, and 24mp files are HUGE

[Rentham]

You can try increase your Camera RAW cache in the LR preferences. Also rendering 1:1 previews on import can help if you're willing to have the import process take longer. Finally, I've found applying Lens Correction will bog things down substantially. Outside of upgrading hardware, I don't know of any other LR tuning moves that pay dividends.

Yep.

I have several laptops and computers. My old Core2Duo did great with the 15MP files from my T1i, but got a little slower with my 5DII. My old laptop (dual-core 2.0 Ghz) would take forever with 21MP files, and my other laptop (dual-core 1.7 Ghz) would crash.

My newer Intel i7 920 handles the 21MP files just fine. My Intel i5 laptop does okay, not great.

It only really becomes an issue when I'm tethered with on-site printing, like at a party or event. 21MP files take too long to download and process on a laptop, so I switch the camera to 5MP RAW, which process almost instantly.

[CheaperKings]

Originally Posted by OsmosisStudios

More RAM would be my recommendation. That, and 24mp files are HUGE

This. You really need to up the RAM. You're asking the same computer to process a file, that's double in size, in the same time-frame.

[Biomech]

I use a Sony a580 with ~16MP RAWs and have had the same problem since upgrading to LR 3.4.1

I run a water cooled quad core 2.4Ghz, 7200rpm SATA drives and 8GB ram, - Camera RAW cache is at 2.0GB

[doctorjames]

Thanks for your replies...

I did think that maybe more RAM may be the answer, but then I couldnt work out why more RAM would help with a difference in file size from 12 to 24 Megabytes, when I have Gigabytes of RAM.

I will try tweaking the settings as suggested by Rentham.

I understand I am asking the computer to process something with twice the size as previous, but before it took at most a second to do what it now takes 10 or more seconds to, so more than a 10 fold increase

Anyway, will see... more RAM means more money, which with a new a77 is pretty thin on the ground..

Thanks guys

[ArmySoldier777]

Windows 7 can be a memory hog too. If I close down everything, even going through the task manager and shutting down processes that aren't needed, then Win7 runs at around 1.5GB. With my usual stuff opened up, including firefox which is a complete memory hog, I run an average of about 5GB. So you gotta keep in mind just how much memory is actually being used when you're working on those files. There's a very good chance that you're maxing out with 4GB. Ram is pretty cheap nowadays, I upgraded an additional 8GB for a total of 16, and that only set me back about $50.

[OsmosisStudios]

Originally Posted by doctorjames

Thanks for your replies...

I did think that maybe more RAM may be the answer, but then I couldnt work out why more RAM would help with a difference in file size from 12 to 24 Megabytes, when I have Gigabytes of RAM.

You don't know how RAM works.